I've never found the velcro or hinged clamp attachment methods strong enough to stay put on roads around here, at least with water bottles.
The Topeak does put frame tubes at potential risk, as does virtually every other type of metal attachment. It's much less dangerous to metal handlebars, and handlebars are great locations for water bottles. The Topeak product does take some dexterity to use, but my hands are arthritic, and I can attach them. I think cotton tape is a better solution than electrical tape. I'm more concerned about getting cut by a metal band, but I find them to be a lot more secure than the 'zon devices.
I'm using C & V parts, and much of the 'zon stuff is made for modern diameters. The Topeak stuff does C & V and modern more effectively than the 'zon stuff, in my experience. YMMV.
For attaching water bottle cages to vintage steel down or seat tubes without braze-ons, I'd go for the hose clamps or straps like these:
https://www.ebay.com/itm/29423978966...wAAOSwUN9hO5ZB.