Do the Irelia nerfs even target what people see as the problem?
I don't think so. Most seem to think her mobility is over the top and I rarely if ever actually saw anyone raging about her ult's Disarm or passive doing extra damage to shields.
And this is why I know that more nerfs are going to happen likely in 9.5 or 9.6. I don't know what those nerfs will be and since they seem set on her resets being the core of her identity which seems to be one of the main reasons why people hate facing her more nerfs will miss the goals again.
But making the marks be say a 70% cooldown reduction instead of a reset does not match the "identity" riot want for Irelia. Yet it would still be rewarding to land the marks as any pre rework Irelia player will tell you having to use Q to engage in a fight never felt good. It would not be as fluid as it has been after the rework and you would need to build CDR like before the rework but it would still bbe a sub 4 second cooldown at all points of the game after Qing to a marked target.
And so more nerfs are on the PBE and more are going to follow. None seem to actually address what makes her banned and played so much.
Dare I say all of the nerfs so far could be reverted if the resets were changed to 70% cooldowns? Likely not all but most.