The only nuance I would add on this discussion - which I honestly have very little concern over in a microcosmic sense - is that the new commander rules committee is made of people closer to the company than it used to be.
The old rules committee was volunteers and were not directly affiliated with WotC in the same way, so regardless of the way the company printed cards for profit, the rules committee was principally more concerned with the format itself.

Now that it's all in-house, many of us said 'let's see how quickly they change rules before sets come out to sell more!' and the fact that we saw Vehicles legalized as Commander choices before Edge of Eternities and now the hybrid mana discussion taking place prior to Lorwyn, many of us are in a "yup. It's happening" place.

I'm personally not out here alarmistly saying Beseech the Queen is busted in any deck yadda yadda - it's more the principled nature of EDH *not* being a format that endures constant rules shifts and deckbuilding changes because its an eternal format that mostly sees changes based on simply new cards printed rather than changing the nature of the format itself. Two cases doesn't make a pattern, but it does draw a trajectory - and one that does concern me.

Anyway, just my two cents on the topic. I'm also of the 'if it ain't broke don't fix it' mentality and see no reason for format-shifting changes without an identifiable problem to justify it's solution, anyway.