Patrick,
1) The two modified greens at Merion may have been prompted by the impending U.S. Open, but where we disagree is that they needed to be made playable again, anyway. I hope #5 green doesn't turn into a situation like #7 at Shinnecock or #18 at Olympic two Opens ago. I will be spending time there next June to see for myself. "Those guys are good", so my concerns may be overblown.
2) Your friend added much more to his life, and spent much more money doing it, than Merion has done regarding the everyday golf course. Also, your friend will now spend much more $$ maintaining his new acquisitions than Merion will spend on the upkeep of three new bunkers. I don't know the club's plans for the upkeep of the new tee boxes that will, for the most part, see no action until the next national men's championship comes to Merion. Most of them (but not all) are not appropriate for even a state or local championship.