If Mesa was smart, they'd buy a few of these modded Rectos, take the best elements of each, and make their own hyper modern ultra tight monster high gain amp. They could even just call it the Rectifier Modded Edition or something. Knowing Gibson though, they'd demand the amp be named something cringy like the Recto MOLTEN SEARING edition or something ridiculous and awful like that lol.
The Recto's diamond plate front has always painted that amp into a corner. It can do so much more than that one specific boosted tone. The Multi-Watt in particular is absurdly versatile. There are like 8 modes in that amp and they all do something cool, yes even the Raw modes. They just all don't do the sound you associate with kick ass hell yeah manly man diamond plate metal so you never hear about them, because most people who buy Rectos are the people looking for that specific tone, because the amp has been marketed to specifically only that kind of player. Rectos are surprisingly dynamic high gain amps, too. Without a boost you actually have to play it pretty hard to get a decent amount of gain out of it.
It would be cool to mess around with a Recto modded like the one in the OP, but I don't think I'd mod one if I only had one Recto. Maybe if I had a 2nd Recto though.