My Critical Reasoning:

What are the issues here? 
1.A Command: “Follow what Allah has revealed”, 
 2. A response to that Command: “Rather, we will follow that upon which we found our fathers.”
3. Allah’s warning: “Even if Satan was inviting them to the punishment of the Blaze”?
What does it mean by the calling of shaitan?
Denying the way of worship revealed by Allah is the calling of shaitan.
Where will you get what Allah has revealed?
It’s in the Quran and in authentic Hadith.
How does it relate with punishment?
It means, these acts will take people to Jahannam
31:21 And when it is said to them, “Follow what Allah has revealed,”they say, “Rather, we will follow that upon which we found our fathers.” “Even if Satan was inviting them to the punishment of the Blaze”?
31:21

وَإِذَا قِيلَ لَهُمُ اتَّبِعُوا مَا أَنزَلَ اللَّهُ قَالُوا بَلْ نَتَّبِعُ مَا وَجَدْنَا عَلَيْهِ آبَاءَنَا ۚ أَوَلَوْ كَانَ الشَّيْطَانُ يَدْعُوهُمْ إِلَىٰ عَذَابِ السَّعِيرِ

Sahih International

And when it is said to them, “Follow what Allah has revealed,” they say, “Rather, we will follow that upon which we found our fathers.” Even if Satan was inviting them to the punishment of the Blaze?

Bangla

তাদেরকে যখন বলা হয়, আল্লাহ যা নাযিল করেছেন, তোমরা তার অনুসরণ কর, তখন তারা বলে, বরং আমরা আমাদের পূর্বপুরুষদেরকে যে বিষয়ের উপর পেয়েছি, তারই অনুসরণ করব। শয়তান যদি তাদেরকে জাহান্নামের শাস্তির দিকে দাওয়াত দেয়, তবুও কি?