Is this the latest strategy from bitcoin cash?

[cantorio]

Just watching the hashrate,

Seems like there might be a game here to force the difficulty level of BTC up at the next adjustment. When the diffficulty is very high, the miners can then pull the hash power and BTC will enter a bit of an ice-age unlike anything experienced before while BCH will carry on chugging.

Unless BTC gets a difficulty adjustment hard fork will it not be very vulnerable to this approach?