I have a TV securely (lag screws into studs) mounted to the wall with an extending/articulating wall mount. We don't move it around, the TV remains in fixed position, about 20" away from the wall. However, I recently noticed the TV wobbles if touched or bumped even slightly on either end, furthest away from the centre. The wall mount is quite secure, and I've tightened up all the adjustable joints, it's just that the TV itself can wobble and vibrate since the whole thing is cantilevered out. Now that we have a toddler, I'm wondering if this is a safety concern. I cannot find any advice or guidance about adding extra support to a wall mounted TV, I only see people advocating for safety straps, etc. for TVs that are free-standing.
So my main question is this: is it okay that a wall-mounted TV wobbles a bit when touched? How much is too much? Part of me says it's fine, it's securely mounted, and cantilevered things like that will always wobble (like the tip of an airplane's wing). But the other part of me is, well, a worried dad.
I'm thinking the easiest way to remedy this would be to fasten a vertical support from the bottom of TV or the mount itself straight down to floor. That kinda ruins the whole "floating TV" look, though.