Okay. Go with that. I never actually read the manufacturers recommendation. I admittedly was naive.
DISCLAIMER: All of this is just speculation and my personal opinion which doesn't apply to anyone else but me.
I do weapon light stuff on a pretty regular basis and I see (by working alongside/with other night shift officers from neighboring departments who own many different brands of gear) which lights, beam patterns, and intensities work in the multiple environments we find ourselves in where we have zero to little control of the conditions we can predict ahead of time. Rain, fog, smoke, closets, under beds, across large greatrooms, in laundry rooms, football stadiums, pharmacy break-ins, attics, crawl spaces, in shoulder-high corn and waist-high cotton, dense woods, truck stops, tinted car windows ... you get my point. For this guy (me) I know when I have "enough" light, "too little" light, "too much" light, "too tightly focused" light. A Universal Rule among the guys I am around is that if you have to have JUST ONE LIGHT a wider evenly-flooded beam that is good to 40-50 yards is much preferred to a pencil hot-spot that claims 300-yard penetration. The first time I was searching for an armed and desparate fugitive in a forested area I quickly noticed how scary the dark voids were that were not lit around me by the spill of my light. Sure, a light with a LOT of throw and less spill would have come in handy a time or two but not that night. That light would have been pretty nice out in the open, though. But long-range lights (from my perspective) just don't appease most of the situations that I find myself in.
My shotgun light is an ElZetta with the Malkoff Device Flood emitter because I can more quickly pick up wide peripheral movement and color that I cannot see with an overpowering white hot center and a bit of spill effect. And the flood emitter is more than enough to illuminate the area that is within effective range of my shotgun ammunition. My AR has a plain-jane TLR-1 that doesn't even strobe. I bought it intentionally without a strobe. I keep all my lights as simple as possible. On. Off. No clickie/twistie/multi-mode/multi-output. I like my lights to be like me. Simple and stupid.
But I'm not you, and I don't know your circumstances and environments.
As a homeowner I recognize that knowing and predicting all the parameters around you allows each of us to choose a specific light that works for room clearing and everything else. Advantage Homeowner. Apparently, A TLR-1 HP does fill that requirement according to Streamlight. Buy one. Enjoy it. They are professional-grade gear. I own three TLR-1 lights and I am very much a fan-boy of their products. Owning a Streamlight weapon light is a good thing.
I learned something about the HP light. Thanks..