Ovinomancer
No flips for you!
Im stuggling to see a need for a houserule.
If a PC wants to delay access to higher level abilities (and feats) for a decent ranged attack, Its not breaking anything.
I cant see any players rushing into a 2 level dip of Warlock just to spam eldritch blast.
Then allow me to point to Post #25, so that you may struggle no more.
If you still disagree, I'll see you at the table on Sunday and we can discuss it in person. You are in my game, right?