@Timo^ The E came soon after the D and the Defiant also followed its predecessor immediately.
Ultimately, it's all in one's personal continuity or belief and there's nothing to prove anyone right or wrong. But I don't find the version you suggest convincing. I'm sure the reverse is true too!
But there's a difference.
After the Enterprise-A, the name has only passed on when there's been a new ship class.
Original Enterprise - Constitution Class
1701-A - Constitution II (depends on one's canon).
1701-B - Excelsior
1701-C - Nebula
1701-D - Galaxy
1701-E - Soverign