I believe Adm Sir Jackie Fisher warned against placing battlecruisers in the battle line, which Adm Jellicoe did. The High Seas Fleet battlecruisers were closer to true battleships and did far better in the exchange.
But mostly Jutland was like the Battle of Bull Run in the US Civil War. You were using line ahead tactics and signal flags much like Nelson did at Trafalgar, but the weaponry was largely untested. Jutland was that test.
After World War I, Jellicoe was sent to New Zealand as Governor General and was not able to defend his reputation. His Line of Battle never got engaged. The fight was carried forward by Adm. Beattie who had most of the battle cruisers and most of them are still there, on the sea bottom. The practice of the Royal Navy, in order to improve the rate of fire, was to leave open bulkhead hatches that separated the gun turrets and the passageways from the projectiles and powder. In addition, crews stowed propellant in the turrets in order to reload more quickly. They turned the Battle Cruisers into death traps.
Adm. Beattie made the famous comment, “Something is wrong with our bloody ships today”. Now we know.