You have not answered the the first question that needs addressing, does the Quran authorise us to follow the hadith and traditions? Answer, no.
It does mention not to follow these as well as telling us to follow only the Quran, but this is not enough for the majority!
4.100. He who forsakes his home in the cause of Allah, finds in the earth Many a refuge, wide and spacious: Should he die as a refugee from home for Allah and His Messenger, His reward becomes due and sure with Allah. And Allah is Oft-forgiving, Most Merciful.
101. When ye travel through the earth, there is no blame on you if ye shorten your prayers, for fear the Unbelievers May attack you: For the Unbelievers are unto you open enemies.
4.102. When thou (O Messenger). art with them, and standest to lead them in prayer, Let one party of them stand up (in prayer) with thee, Taking their arms with them: When they finish their prostrations, let them Take their position in the rear. And let the other party come up which hath not yet prayed - and let them pray with thee, Taking all precaution, and bearing arms: the Unbelievers wish, if ye were negligent of your arms and your baggage, to assault you in a single rush. But there is no blame on you if ye put away your arms because of the inconvenience of rain or because ye are ill; but take (every) precaution for yourselves. For the Unbelievers Allah hath prepared a humiliating punishment.
4.103. When ye pass (Congregational) prayers, celebrate Allah.s praises, standing, sitting down, or lying down on your sides; but when ye are free from danger, set up Regular Prayers: For such prayers are enjoined on believers at stated times.
Where are the following in the 'salat' you perform?
Do you take weapons with you when you pray?
Taking their arms with them: When they finish their prostrations
Do you put away your weapons when praying when it rains or you are ill?
But there is no blame on you if ye put away your arms because of the inconvenience of rain or because ye are ill;
When you are in danger and have finished praying, do you lie down sit and stand singing Allah' praises?
When ye pass (Congregational) prayers, celebrate Allah.s praises, standing, sitting down, or lying down on your sides
The Quran tells you what positions you can be in AFTER 'praying' but does not tell you the positions of the sujood. i.e putting forehead on ground!
If we are talking about getting instructions when in foreign lands, having small congregations to teach people about Islam, letting those who know get on with being dutiful to Allah whilst others who have trailed behind come forward to LEARN, then the inconsistencies disappear.