No he was not a false teacher he was human and spoke from his only understanding we all make those mistakes of not waiting on the Lord to edify our thoughts.
One really can not go on passion alone one must allow the Spirit of the Lord to edify or else one could make mistakes and misunderstandings
That is why we are counsel to read ponder and pray and not take for granted that our passions are alright.
Doctrine and Covenants section 8
1 Oliver Cowdery, verily, verily, I say unto you, that assuredly as the Lord liveth, who is your God and your Redeemer, even so surely shall you receive a knowledge of whatsoever things you shall ask in faith, with an honest heart, believing that you shall receive a knowledge concerning the engravings of old records, which are ancient, which contain those parts of my scripture of which has been spoken by the manifestation of my Spirit.
2 Yea, behold, I will tell you in your mind and in your heart, by the Holy Ghost, which shall come upon you and which shall dwell in your heart.
3 Now, behold, this is the spirit of revelation; behold, this is the spirit by which Moses brought the children of Israel through the Red Sea on dry ground.
4 Therefore this is thy gift; apply unto it, and blessed art thou, for it shall deliver you out of the hands of your enemies, when, if it were not so, they would slay you and bring your soul to destruction.
5 Oh, remember these words, and keep my commandments. Remember, this is your gift.
But how soon the mortal man forgets and tries to run on his own instaed of waiting on the Lord to resume.
Section 9
1 Behold, I say unto you, my son, that because you did not translate according to that which you desired of me, and did commence again to write for my servant, Joseph Smith, Jun., even so I would that ye should continue until you have finished this record, which I have entrusted unto him.
2 And then, behold, other records have I, that I will give unto you power that you may assist to translate.
3 Be patient, my son, for it is wisdom in me, and it is not expedient that you should translate at this present time.
4 Behold, the work which you are called to do is to write for my servant Joseph.
5 And, behold, it is because that you did not continue as you commenced, when you began to translate, that I have taken away this privilege from you.
6 Do not murmur, my son, for it is wisdom in me that I have dealt with you after this manner.
7 Behold, you have not understood; you have supposed that I would give it unto you, when you took no thought save it was to ask me.
8 But, behold, I say unto you, that you must study it out in your mind; then you must ask me if it be right, and if it is right I will cause that your bosom shall burn within you; therefore, you shall feel that it is right.
9 But if it be not right you shall have no such feelings, but you shall have a stupor of thought that shall cause you to forget the thing which is wrong; therefore, you cannot write that which is sacred save it be given you from me.
10 Now, if you had known this you could have translated; nevertheless, it is not expedient that you should translate now.
Perhaps you need to reread this
And if any man speak a doctrine which contradicts what is in the standard Church works, you may know by that same token that it is false and you are not bound to accept it as truth."
mcconkie spoke/taught doctrinal materials, heavly citing mormon canon - there is no excuse - he is a false teacher by mormon definition. The SECOND edition went out under the GA's blessing - their assurance that the doctrines taught WERE correct to those in the standard works. Now the GA then is allowing (since they reviewed and blessed the second edition) false doctrines to be taught.
So much for those living prophets eh?
Oliver Cowdery
Or does it prove there is no time,
Because some watches will not go?
............................................................ Or prove that Christ was not the Lord
Because that Peter cursed and swore?
Or Book of Mormon not His word
Because denied, by Oliver?
Do you support Romney for president?