Let me make this really simple for you. You have

100 WordPress sites with mostly amateur developers , that makes a great target for hackers, big school of fish. 10 get hacked. Thats 10 % youl be hearing about it all day.
you have 10 Python sites, mostly millennial but more advanced developers, 2 get hacked 20% .

Its easy to say WordPress is the bad guy.
Also remember php has had its time trending python ( thus shopify ) though its been around for ages has started its trend a few years ago once there are enough targets in python sites on the web we will be hearing alot more about them being hacked too.

Hackers are for the most part looking for abundance in potential targets, python hasnt achieved a big enough share to be that yet it will though.

I dont know why you say WordPress is dying :
Here’s WordPress’ overall market share going all the way back to 2011, according to W3Techs:
2011
13.1%
2012
15.8%
2013
17.4%
2014
21.0%
2015
23.3%
2016
25.6%
2017
27.3%
2018
32.0%

Seems like steady growth to me despite the impeding 'Threat" from python to php.
I would never be as naive to say one language is better than another as everything has its assets if it didnt it wouldn't be around today. The bigger market share they get the more they are going to push php for improvement look at the rate php is updating compared to before its severely increased.

Sure python is great but it cannot offer what php does in one aspect fast turn around times and ease of use to users. In the same way that php is not nearly as flexible as python.

I very much agree that python is a higher level language i wouldnt down it for a second. I just not going to hype it up either.

It shouldnt really be compared i think They are aimed at different needs. WordPress is a simple CMS that is easy to install and deploy, and you can get started with it very quickly. It is not however suitable for more demanding applications as python would be.

I cant say for sure though, maybe il eat my words one day this is just as things stand right now.