For me, mind controls wording applied to between actions in the action stage, not during the ready stage.
The main issue the Mind Control ruling caused was the subsequent abuse it then created
This then needed an errata to make it exception to the rule: Upkeeps are paid in any order
An issue that never existed until the Mind Control ruling; now we are seeing another effect?
In light of that ruling, I can see how every conjuration action marker effect could be interpreted
As long as I had last action last round or will have first action this round, I can trigger the effect
Because "between actions" includes Ready Stage and this is "before or after a friendly action"
(But not always the case: against creature overlap, Ready is not before or after friendly action)
I know exactly the type of player who's a rules lawyer and would argue this way so I have alot of sympathy
And there's absolutely nothing you can do to prove to him his logic may be fine but the rules say differently
However a ruling has been made, then the card was errata'd and now a FAQ clarification may be needed too
Some may think the ruling was opening a can of worms but we have to live with any perceived inconsistency
I feel rules should be treated as Living, evolving, and should be forgiven if it changes its mind, improves.
After all, Magic changed rules quite radically at times (Interrupts -> All on Stack -> Damage not on Stack)
It also seems a shame that some cards have erratas when the meta may have moved beyond needing them
Magic and Game of Thrones approaches its mistakes by adding and removing cards from banned/restricted
Cards that were once too powerful soon became less powerful as the pool evolved so removed from the list
I'm not trying to draw any parallels here...
