This is not the case. As you just read in the article:
https://highwaycode.org.uk/rule-140/
> Cycle lanes. These are shown by road markings and signs. You MUST NOT drive or park in a cycle lane marked by a solid white line during its times of operation. Do not drive or park in a cycle lane marked by a broken white line unless it is unavoidable. You MUST NOT park in any cycle lane whilst waiting restrictions apply. Law: Road Traffic Regulation Act 1984: Sections 5 & 8
Here's a cycle lane with a broken white line: https://www.google.com/maps/@51.5159626,-0.1020373,3a,75y,17...
You shouldn't enter, stop or park here unless it is "unavoidable". You're a taxi driver dropping off a passenger? That's not "unavoidable".
Here's a cycle lane with an unbroken line: https://www.google.com/maps/@51.5162184,-0.1047894,3a,75y,15...
The latter, no you CAN'T enter it to drop people off, no matter who you are. It is literally illegal to do so.
You've quoted the rules which forbid parking and driving in the bike lane and then went on to confidently make up the part about stopping and dropping people off.