No, that's not how this works. If you want things to change, you have
to prove why your way is better.
Note that errata is very rarely issued with the sole objective of
improving poor cards. And Misdirection in its current form is not a
poor card - it turns up in more than a few tournament winning decks.
Of the 14 TWDA entries in June 2012, it turns up in 5 of them. That's a
pretty healthy percentage! It's pretty clearly already a decent card -
and since winning Methuselahs are happy to pay the price for the effect,
it seems like it's fairly costed too.
So it's a decent card, with a reasonable cost, played by winning
Methuselahs in strong decks. There's no need to change it.
Further, for the people currently using it to access a quick, cheap tap
of a minion, the cost has increased. The card is clearly worse for
them. Yet there is no current outcry that the card is broken, so that
seems an unwarranted change.
Since the card is good, well-costed and useful currently, and your
change seems harmful for questionable benefits, there really doesn't
seem to be any reason to change.
Please note that repeatedly asserting "This is fair" and "It MUST be
reprinted like this" is not a useful argument. If you want things to
change, *you* have to put in the effort.