Kraken - Trading suspension in Canada for USDT, DAI, WBTC and WAXL

Kraken Email:
"At this time, we are required to suspend deposits, withdrawals and trading in Canada across all trading platforms for Tether (USDT), Dai (DAI), Wrapped Bitcoin (WBTC), Wrapped Ether (WETH), and Wrapped Axelar (WAXL).

Here is what you need to know:
As of November 30th, 2023 at 12:00 p.m. EST deposits and trading functions will cease for USDT, DAI, WBTC, WETH, WAXL.
At this time, all open orders (spot and margin) for USDT, DAI, WBTC, WAXL will be canceled.
If you hold balances in any of USDT, DAI, WBTC, WETH, or WAXL we encourage you to consider one of our supported trading pairs or to withdraw prior to November 30th.
As of December 4th, 2023 at 11:00 a.m. EST withdrawal capability will cease for these crypto assets.
As of December 5th, 2023, any USDT, DAI, WBTC, WETH, WAXL balances remaining in your account will be converted to US dollars (USD), at the prevailing market rate and credited to your USD wallet balance."
No mention of a reason, law or regulation? What gives? WBTC?