Severely incorrect bro! Hiruzen used two very high level jutsus that were correct for certain situations! Given his opponents and the limited small space his hire style was op ass fuq and literally can be controlled at will for tricky situations (only none Enton user that can control fire, not even madara has that luxury), his mud wall was thick and durable while only being minimal. Both Jutsu shown can be used greater and stronger but based on the limited space only what was needed was used. It's like pain having different scales and uses with Shinra tensei (small, big, gigantic).
Same with tobirama, using a perfect size water wall then shortly using water dragon in seconds (when even zabuza needed a whole to preform). It was simply gauging and doing what was presumed needed, but no where did it suggest limits were met. It is simply fans thinking such.
For example he at an old age used RDS 3 times no diff, that's a S rank Jutsu 3 times. Let alone one of the penacle jutsus shown and best sealing jutsus shown. Enma alone is retardedly heavy yet after warming up handled it no diff equally with oru a master swordsman (who taught sasuke btw).
