Just take a look at WHMCS forum or check WHT for all threads with subject *hacked*. All those resellers hosted with different hosting companies got hacked as their hosts had no mod_security or disabled php functions.
Check our forum and let me know what was the date when someone reported hacking problem ?
We have expertise in security of servers and that's the only reason our shared and reseller hosting customers feel safe with us. We don't spare hackers when we see failed hacking attempts from the access logs on our servers.
We don't add this security modules to trouble you.
All these security settings are done to prevent your websites from any possible injection or hacking attempt.