This is silly like the discussions several years ago. Specialized is sponsoring two of the major contenders; do you think they'd take that kind of risk? It'd ruin their brand if all success was attributed to Granpa's e-bike technology. Better to have a busted, doped rider win on their product and drop the rider.
No; they are somewhere between better than other riders/teams and the Outer Limits. Motor doping isn't likely.
"there was smoke around Pogacar during the 2021 Tour where other (anonymous) riders said his bike was making weird sounds." is hack-writer click-bait. The weird sound would be someone like Remco or Tadej made accelerating in 3 cogs higher than the riders being dropped.
yeah what's in it for Specialized (which neither Vinegegaard or Pogacar ride btw, but follow me here) other than winning races and getting tons of exposure to sell even more $14,000 bikes to dentists? some people are so naive. money is everything, motor doping is extremely likely.