it's not the payment, it's the suggested magnitude of payment. the SA blog suggested 7 or 8 figures.
figuring that PTK has perhaps 11-14MM on-hand, rumor-mongering of a dump of huge buckets of cash to pay a Synopsys bill is imo a thinly-veiled scare tactic intended to set everybody's hair (hare? LOL) on fire.
unless there's some evidence of it, it's just jaw jaw.
cheers,
R.