When we first got a conference camera we got the older Conference Cam 3000 and our boss made us put it up there against my suggestion. When it came down for the decorator, I put it back up but under the TV and no one complained and there it stayed! It eventually died and since I’m the boss now pretty much I replaced it with the Rally which I really like. But I’ve put the speakers on the table underneath rather than wall mount, with some good distance between.
Strange how this room looks similar to mine, minus the ceiling art.
If you put microphones into the table, the audio will be horrible, catching up any surface acoustic waves from any noise on the table. Like if someone touches the table anywhere, this will be caught by the microphone. If someone puts down a hard item to the table anywhere (e.g. a pen, fingertips with fingernails, smartphone) you won't be able to hear anyone in the room through microphones due to the transient noise.
The audio will not be horrible. Those mics are designed to be mounted into tables with a particular mount. They are padded underneath to eliminate that vibration. Also, the Rally Plus system is only looking for voice signatures and has some very good AEC built into it.