Agreed. Like it or not, we actually have a definition of what a catch is. Years ago it was just a judgement call.
Now the one rule I don't like is the fumble out of the end zone rule.
The are actually
two rules regarding fumbles out of the endzone:
1) Team A (on offense) fumbles the ball into Team B's endzone and the ball carries through the endzone out of bounds
= Touchback and possession by Team B at their own 20-yard line.
... If Team B
recovers Team A's fumble in Team B's endzone, it's a Touchback (provided the Team B player downs the ball there without carrying it out of the end zone into the field of play).
... If Team B
intercepts Team A's pass attempt in Team B's endzone, it's a Touchback (provided the Team B player downs the ball there without carrying it out of the end zone into the field of play).
Basically, Team A fumbling the ball through Team B's endzone is treated as the equivalent of Team B recovering that fumble and downing it within the Team B endzone.
2) Team A fumbles the ball into it's
own endzone and the ball carries through the endzone out of bounds
= Safety for Team B, and possession for Team B after a free kick by Team A.
... If Team A recovers its own fumble in their own endzone and is downed there, it's a Safety & possession for Team B .
Both rules penalize the offense (Team A) for fumbling into either endzone. However, the penalty on Team A for fumbling into (through) their own endzone is even harsher - loss of possession
PLUS points for Team B.
I'm honestly not sure what would be accomplished by changing either rule, and I'm especially skeptical about changing one rule so that it favors the offense and not the other.