I think its a great reminder to code with whatever you feel comfortable. For example, my last project I did in Centos/Apache/PHP5/Code Igniter 3.1 with some WASP for protection I did for 12 years and sold few months ago. It checks out against Qualys Server test and ImmuniWeb very well. I sold it for close to $10MM with annual revenues of $1.6MM. The last question the new owner asked me was "what did you program it with?". They mostly want bunch of boring excel spreadsheets seeing where I am, how the sales are sustained, and how do I believe it can grow. On the final day, their IT guy showed up. He looked in silence through 45 minutes of my code's presentation, which is very much mix of OO and not OO, and his only words were "I don't like frameworks if that was me I would start the whole thing from scratch".
So you never know what or whom you gonna get, but the bottom line is if you have sales and revenues and keep tabs on spending, they will come, and they will not care less about your fancy framework or newest code implementations.
TLDR: code in whatever you feel comfortable but always consider security as top priority (not speed) because in production your code's/setup security mistakes can cost you serious legal troubles.
So you never know what or whom you gonna get, but the bottom line is if you have sales and revenues and keep tabs on spending, they will come, and they will not care less about your fancy framework or newest code implementations.
TLDR: code in whatever you feel comfortable but always consider security as top priority (not speed) because in production your code's/setup security mistakes can cost you serious legal troubles.