^Two things can be true at once. I think we would have a hard time finding anyone who thought the plastic-faux-terracotta-paneled monstrosity attractive. Certainly, I don't.
I think in Boston, "historical" ends up being used in a one-size-fits-all fashion by bureaucratic agencies that prevent change even where change would be welcome. It's also used as a weapon by NIMBYs to prevent development. In the end, it also does not prevent the destruction of some true gems — again, like the marble building by HMS, which is a truly elegant structure.
And again, the fact that something is old — even if it's old and probably looks better than what would replace it — is not an argument for preserving it at all costs. These brick buildings on S Huntington certainly have a few flourishes typical of big structures of yesteryear, but they're actually not that nice at all... they look exactly like what they were built as: big, institutional buildings. They look tired, they are set back from the street, and they don't add anything other than a taste of run-of-the-mill 90-year-old architecture. Preserving them continues the bad urban policy of setting buildings back from the street, drives costs way up, and that means less money for affordability and good urban design.
I would much rather have a rational approach to preservation and a city with a design commission that actually forced developers to build things that didn't look sheathed in plastic. I would much prefer that money be spent on a taller building that was forced to look nice and sat right on the street, rather than forcing the preservation, costing millions, with a bunch of prefab panelling on the new stuff.
This corridor is dead because it was built to house hospitals and orphanages, and it will remain so until aggressive moves are put into place that change the character completely. Having lived here for 10 years, and the other side of the Muddy for most of my preceding life, I would like to see good development happen. As it stands, we are not gonna get that, not even close.