MARA sold 13,597 BTC to pay off loans and says more sales are coming. Does that worry anyone?

With BTC dipping under $73K after the hot CPI on Tuesday (about $716M liquidated), this one got kind of buried.

MARA's Nov 9 shareholder letter says it sold 13,597 BTC after Q3 for about $1.1B, average around $81K. It used $750M to pay off BTC-backed loans from Coinbase Credit and Two Prime. That's roughly 40% of the ~34,012 BTC it held at the end of September. It also says it isn't done selling (AI buildout, convertible notes) and approved a $500M buyback.

Same week, Coinbase got final OCC approval for its national trust company (custody only, no deposits or loans).

Is a big miner selling this much a real problem, or just noise since it happened over weeks?