"No one ever got fired for buying HST." or Gold Dot for that matter. There are several excellent choices and many good ones. We have more information at our fingertips for terminal performance of bullets than ever before.
I'll take up the case of the classic Remington Golden Saber for this post. Sure, it gets ragged on with today's optics because they lose their jackets... eventually... somewhere between 12"-18". It's like the one bullet we don't know how to evaluate today because it is still around and effective, but doesn't fit the mold of 1.5x+ with no jacket separation. It was not made with today's barrier testing in mind back in 1991 but held it's own against it's major competitors at the time (XTP and classic Hydra Shok.) Many people aren't even carrying the classic competitors today (or the original Black Talon but that's another story) but do carry the GS. Here's a history lesson on the Golden Saber in an ad piece for the Black Belt iteration:
https://www.gunsandammo.com/editorial/remingtons-black-belt-bullet/247952#:~:text=In 1991, Remington introduced the,perform better from short barrels.
As for Golden Saber training vs duty, Remington still sells it as a duty round, albeit their bottom of the line offering:
https://www.remingtondefense.com/ammunition/handgun/
There are many worse choices than the classic GS and Remington has rebranded the same cartridge/bullet as "Ultimate Defense." A person should consider that there are several ammos marketed specifically for CCW holders (and specifically not LEOs), with soft bullets that expand easily and typically average the 12"+ penetration mark. Take Hornady's gem: Critical Defense 9mm
https://www.hornadyle.com/handgun-ammunition/9mm-luger-115-gr-ftx#!/
Nobody in their right mind would question that ammo for CCW use, but Hornady didn't even bother testing it on barriers. Their own published testing is 0.55" expansion and 11.25" penetration out of a 3" barrel Kahr. With those stats, it probably wouldn't have fared well. Lucky gunner clocked it at the same velocity out of a M&P9c, but it went a little further and expanded a little less.
https://www.luckygunner.com/9mm-115-gr-jhp-ftx-hornady-25-rounds#geltest That probably speaks more of the gel medium than the ammo. Again, nobody would rag on Critical Defense for CCW use.
Just for comparison to other ammos marketed for CCW, look at this Golden Saber/Ultimate Defense gel test.
https://www.luckygunner.com/9mm-124-grain-remington-ultimate-defense-compact-jhp-20#geltest
This typifies why it doesn't fit today's mold or way of thinking, but still is incredibly effective for CCW use. Notice that in the gel test, all the bullets lost their jackets, however, this occurred between the 15.5" and 18" mark. So, it pushed an expanded bullet larger than 0.60" through 15.5" of media....and because it lost it's jacket at the very end, when it is out of energy, some label it inferior.
Sure, it isn't a HST, Gold Dot, bonded, or copper creation and won't have a picture perfect expansion blossom... but the GS is still effective for the everyday CCW holder because the expansion threshold is lower than today's barrier designed projectiles, which helps in shorter barreled CCW firearms.