Yeh that is my thinking given the doping history of all of three of our parent sports.

The lack of testing is slightly worrying too, but this is an issue in many sports. For prominent Ironman athletes to only be tested every 3 or 4 weeks is really, really bad.

I sometimes wonder though if people within the Triathlon community are that bothered?

Can you offer a bit more insight into "every 3 or 4 weeks" please? Where are those data? And could you help us by defining (roughly) "prominent Ironman athletes"? Is this the top ranked PTO 30 or 40 or MPRO and WPRO KQ? Aren't they on the 'Whereabouts 24/7' list?
Whereabouts rules are part of the ISTI standard which all(?) ADOs follow.
Top few/3 Ironman and 70.3 get tested after podium, no?

What about Okagbare the sprinter who was excluded?

Totally agree. Some athletes can go all season without being tested. Others can be tested every race and several out of competition tests.

Jan and Kienle posted their drug testing records for the year on twitter.

https://www.google.com/...oles-antidoping/amp/

This was a mix of NADA's and Ironman in competition testing.

It's not their fault they are tested so infrequently but at this frequency it would be easy for some to cheat.

She failed a 2nd test in Tokyo a few days before the race.

https://ita.sport/...yuliya-yelistratova/

These were the only ones I found on their Twitter. Maybe there were other testers? Or I missed it amongst the other stuff they were tweeting

Yelistratova testing positive at Tokyo too now picked up by Tri247

https://www.tri247.com/...g-positive-triathlon