Scientists are continuously skeptical about everything. The details of classification are complex, and there are going to be arguments about details.
What you have failed to mention is that the quote that started this particular discussion is excerpted from a private letter, the full contents of which remains undisclosed.
The thing that is so astonishing is that you and other creationists seem to think that quotes out of context change reality. That is equivalent to arguing that conservatism is invalid because George Bush was insufficiently gung ho in 1970.
You know the quotes don't represent the author's full thoughts, but you seem to think a few "gotchas" is equivalent to an actual argument.
On the subject of transitionals, when was the last decade in which no transitional fossils were found? The last year?
And the quoted person stated ---- The specific quote you mention, from a letter to Sunderland dated 10th April 1979, is accurate as far as it goes.
What do you now claim?