Being a Forex trader, I can safely state, it always boils down to this: You need to make an INFORMED decision here. The signals are there to be read. The "opinion leaders" would have you think this and that, in the end your own observation and action is the only one that counts.
WE as retail clients are way too fragmented in personal experience of service provided at a given moment, let alone to see an obvious progression of such. No cumulative conclusion. I have seen the Telkom congestion being speculated upon, where it actually did occur and it's passing. over this period the "argument" was going here an there, all over the show, while the provider shield himself in the confusion.
Coming from an industrial environment, recurring probs are identified and the real why obtained and the problem closed!!!!!! I have had it with the "switch your router off for x time" If that is the most visited "quick fix", where is the loop closure????? Keep the masses busy with this and that while policies and system utilization and budgets are flexed behind the scenes ad nauseum.
Therefore you have to be systematic in your findings. make your own findings and move on, make a decision.
I have seen about all isp providers in SA having a cock-up some time, that is fine, that is "normal".
But please, don't get yourself herded. THIS cock-up started WAY before SEACOM.
SEACOM is actually the diversion...
In times of upheaval or extreme conditions, the real issues gets revealed. Like now. Take note.
(i conclude, 3rd whisky in the rounds....... so for safety reasons, yourself and mine, i have to stall here..............but above is true in my obscure way

... hehehehe)