My 2006 Honda Odyssey's valves adjusted by Honda dealer mechanic for vibrations

Probably needed those to begin with! We replace dozens of these.

The technician may have missed the engine mount and went with the easy diagnosis. Both are possible. Honda does recommend inspecting the valve clearance at 105,000. Most of the time the valves are adjusted at that time. I'd ask the dealer for a little break on second repair if you what to replace the mounts.