I think the statement I would go for would be that Interleaving off for any person is probably a good thing.
Lower pings mean faster response times, and ping times also start to become a bottleneck for International traffic.
The whole reason for Interleaving is that when you have a poor quality connection which for whatever reason is causing corruption of packets etc (for example bursts of interference noise on the line) then your line is actively using it, and it can be saving you from disconnections
Interleaving off = fast and good
Interleaving on = Stable and good (if you don't do gaming, then I would leave it on)
From what I have seen Interleaving makes about 10% of their customer base more stable as a result.
Also regarding the comment about the Linksys mis reporting metrics taken from the modem, I have seen this across many different modems. (Not specifically whether Interleaving is off or on, I mean I have seen other brands of modem misreport various metrics. It is just a computer program detecting things it thinks it sees).
PS I understand that Telecom can now remove it from all their plans.